Portable dressing room



FIG. 1 is a front elevational view of a portable dressing room showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a front and right side perspective view thereof, left side view being substantially identical to the right side; and,

FIG. 4 is a rear elevational view thereof. 

The ornamental design for a portable dressing room, as shown and described. 